Fabrication

dl324

Joined Mar 30, 2015
16,839
what are the different layers in power devices, like epitaxy, buffer ..etc
Epitaxy is ambiguous. It just refers to depositing one layer on another vs. diffusion which is driving ions into the substrate. Buffer is a device, not a layer. Power devices use a process similar to generic integrated circuits.

Here's a picture of the base layers in a CMOS NWELL process.

upload_2018-8-28_16-0-30.png
 
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